forceImage(Phi,Y)
This method allows to inform the system about the image of a given multi-rational map without performing any computation. In particular, this can be used to declare that a rational map is dominant.
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The source of this document is in /build/reproducible-path/macaulay2-1.25.06+ds/M2/Macaulay2/packages/MultiprojectiveVarieties.m2:4051:0.